"Paper Man" is a story about the friendship between a has-been writer and a teenager from Long Island. There's also something in the movie about an imaginary superhero friend, which I suspect is what the title refers to, but I hesitate to guess about the specifics because I've been wrong about those kinds of things in the past and no deductive reasoning skills.

Beth Stern (current Howard Stern wife and former model), Mark Indelicato, Griffin Dunne, and Dree Hemingway checked out the movie for themselves, so they're not scratching their heads trying to figure out what a 2D illustrated superhero is doing in a movie about and old timer and a youngin'. We are, after all, living in a James Cameron world now, so the reversion back to comic book heroes sounds kind of retro. (In a good way. Retro in a good way.)